USB slot ,digital karaoke ,Remote control,5.1 CH home theater with dvd player Specifications: 1, Selling champion of 2.1CH DVD home sheater system ... HDCD, Kodak picture, JPEG, MPEG-4 (for Divx DVD), etc3, All region code design 4, Progressive scan. 5, PAL/NTSC System. 6, Coaxial ... , Display Aspect Ratio Conversion (4:3/16:9) And Zoom Function 11, Remote control 12, Multi-angle,Up to 8 dubbing language ...